2123322332221 has 8 divisors (see below), whose sum is σ = 2254855576320. Its totient is φ = 1993767031872.

The previous prime is 2123322332207. The next prime is 2123322332227. The reversal of 2123322332221 is 1222332233212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2123322332221 - 2³⁵ = 2088962593853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2123322332221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123322332227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 494483725 + ... + 494488018.

It is an arithmetic number, because the mean of its divisors is an integer number (281856947040).

Almost surely, 2^{2123322332221} is an apocalyptic number.

It is an amenable number.

2123322332221 is a deficient number, since it is larger than the sum of its proper divisors (131533244099).

2123322332221 is a wasteful number, since it uses less digits than its factorization.

2123322332221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988971875.

The product of its digits is 10368, while the sum is 28.

Adding to 2123322332221 its reverse (1222332233212), we get a palindrome (3345654565433).

Subtracting from 2123322332221 its reverse (1222332233212), we obtain a palindrome (900990099009).

The spelling of 2123322332221 in words is "two trillion, one hundred twenty-three billion, three hundred twenty-two million, three hundred thirty-two thousand, two hundred twenty-one".